A Lunar Environment Simulation Test Bed

1967 ◽  
Author(s):  
Joseph L. Seminara ◽  
Richard J. Shavelson ◽  
Stuart O. Parsons
Keyword(s):  
Test Bed ◽  
Simulation Test ◽  
Environment Simulation ◽  
Lunar Environment

Control System Design of Pneumatic Conveying in Sand/Dust Environment Simulation Test

2013 ◽  
Vol 442 ◽  
pp. 424-429
Author(s):  
Jiao Yin ◽  
Hu Liu ◽  
Jun Wang ◽  
Ke Li
Keyword(s):  
Control System ◽  
Pneumatic Conveying ◽  
Test Bed ◽  
Time Data ◽  
Simulation Test ◽  
Pneumatic Control ◽  
Environment Simulation ◽  
Linear Fit ◽  
And Control ◽  
Sand Dust

This paper focuses on the design of pneumatic conveying control system, including the design of both hardware and software part. The hardware part is mainly about building a test bed. Under certain wind conditions, by controlling the rotary feed valve to achieve the control of sand/dust concentration. The software part is to make the use of LabVIEW to develop a screen display program, which can achieve real-time data acquisition and control. The paper consists of three parts, the pneumatic control system hardware design, the pneumatic conveying control system software design and then Origin is used to linear fit the wind speed parameters collected back.

Simulation of Power Line Communication Using OPNET for Vertical Fish Farm

2018 ◽  
pp. 139-164
Keyword(s):  
Efficient Algorithm ◽  
Large Scale ◽  
Network Simulation ◽  
Power Line ◽  
Fish Farm ◽  
Simulation Tool ◽  
Test Bed ◽  
Simulation Test ◽  
Large Scale System ◽  
Large Scale Simulations

OPNET is a network simulation tool which can simulate various elements in a network. It is able to analyze traffics and even can simulate security events recently. System designers can identify vulnerabilities or find an efficient algorithm/protocol that could reduce costs if simulations are performed prior to actual implementation/construction of a large-scale system. Thus, this chapter includes the method of simulating a PLC-system, designing a PLC-based vertical fish farm and an expandable simulation test bed with which students or researchers will be able simulate their implementation methods. With these methods, it will be possible to perform large-scale simulations.

scholarly journals The Design of Large Arc-shape High-precision Walking Device in TV (thermal-vacuum) Conditions

2018 ◽  
Vol 237 ◽  
pp. 03014
Author(s):  
Xue Lian ◽  
Nan Hua ◽  
Liu Jiaqi ◽  
Liu Xin ◽  
Meng Gang
Keyword(s):  
High Precision ◽  
Optical Image ◽  
Thermal Design ◽  
Space Environment ◽  
Test Facility ◽  
Simulation Test ◽  
Thermal Vacuum ◽  
Arc Shape ◽  
Environment Simulation ◽  
Environmental Simulation

The large-sized space environmental simulation test facility is mainly used for providing thermal radiation environment in high-vacuum, cold and dark space for satellites, spacecraft, lunar spacecraft to carry out whole satellite thermal vacuum test and for large equipment like antenna to carry out tests in TV conditions. Monitoring the spacecraft’s surface optical image or temperature is a main task in space environment simulation test. In previous tests, optical image test mainly took place in a fixed position, so the measuring location and angle are limited. This paper focuses on large spherical space environmental simulation test facility, and designs a large arc-shape high-precision walking device in a space environment simulation test device. It introduces key technology in detail like structure design, thermal design, processes and manufacturing, etc. The test results show that this device can work steadily and reliably under simulation space environments, and the precision exceeds 0.5°.

Distribution of Artificial Intelligence in Digital Games

2015 ◽  
Vol 11 (3) ◽  
pp. 1-14 ◽  
Author(s):  
Shaun Downey ◽  
Darryl Charles
Keyword(s):  
Artificial Intelligence ◽  
Computer Games ◽  
Virtual World ◽  
Digital Games ◽  
Test Bed ◽  
Simulation Test ◽  
Heuristic Function ◽  
Multi Agent ◽  
Applied Artificial Intelligence ◽  
The Ideal

This paper reports on the creation of an application capable of producing intelligent character behavior based on distribution of Artificial Intelligence. To develop, test and experiment on applied Artificial Intelligence, computer games are quickly becoming the ideal simulation test bed for the implementation of computer generated AI. The application of Artificial Intelligence algorithms create immersive game-play where human players can interact with non-player characters and interactions with the environment helps shape the way in which games are played. A-Star pathfinding utilizes a heuristic function implementing cost of moving through a virtual world, this actively affects how an agent responds to a situation and can alter its decision making. This paper describes the implementation of the A-Star algorithm combined with gameplay mechanics used to simulate multi-agent communication within a randomly generated game-world.

scholarly journals Research on the Modeling, Control, and Calibration Technology of a Tracked Vehicle Load Simulation Test Bench

2019 ◽  
Vol 9 (12) ◽  
pp. 2557
Author(s):  
Haoliang Lv ◽  
Xiaojun Zhou ◽  
Chenglong Yang ◽  
Zhe Wang ◽  
Yimeng Fu
Keyword(s):  
Test Bench ◽  
Control Method ◽  
Dynamic State ◽  
Test Bed ◽  
Simulation Test ◽  
Tracked Vehicle ◽  
Resistance Torque ◽  
Model Control ◽  
The Stability ◽  
Load Simulation

The load simulation test bench plays an important role in tracked vehicle development. The stability and accuracy of the system have a vital impact on the experimental results. To accurately reproduce the power performance of a tracked vehicle on the test platform, this paper aims to investigate the model, control, and calibration method of the test bench. Firstly, the dynamic model of a tracked vehicle under complex driving conditions is analyzed and established, which takes driving torque as the input and driving wheel speed as the output. Then, considering the uncertainties and disturbances in the system model, a 2-degree-of-freedom (2-DOF) control method combined with a disturbance observer is proposed to solve the stability problem of the system. Furthermore, in order to investigate the accuracy of the simulation on the test bed, a method of calibrating the system by a flywheel set with standard inertia is proposed. In the calibration process, the influence of the system resistance torque and the original mechanical inertia on the results is considered, and the response time of the inertia simulation is analyzed in both a steady and dynamic state. Finally, the load simulation test is carried out with the corrected system. The test results show that the system has a high load simulation accuracy under various load simulation tests.

An Experiment on Weight Sensation in Real and Virtual Environments

2004 ◽  
Author(s):  
Adam S. Coutee ◽  
Bert Bras
Keyword(s):  
Virtual Reality ◽  
Virtual Environments ◽  
Three Dimensional ◽  
Tactile Feedback ◽  
Test Bed ◽  
Simulation Test ◽  
Time Simulation ◽  
Haptic Technology ◽  
Sense Of Touch ◽  
Disassembly Planning

Virtual reality allows users to visualize and interact with a three-dimensional world in a computer-generated environment. Haptic technology has allowed enhancement to these environments, adding the sense of touch through force and tactile feedback devices. In the engineering domain, these devices have been implemented in many areas including product design. We have developed a real-time simulation test bed to assess the usefulness of haptic technology for assembly and disassembly planning. In this paper, we present a study conducted to characterize the perception of weight in this virtual environment. Specifically, the experiments performed test the ability of a user to distinguish weight differences between two objects in real and virtual environments. This paper describes the experiments conducted and an analysis of the results.

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